3906918 has 24 divisors (see below), whose sum is σ = 8833968. Its totient is φ = 1245552.

The previous prime is 3906911. The next prime is 3906919. The reversal of 3906918 is 8196093.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4305 + ... + 5132.

It is an arithmetic number, because the mean of its divisors is an integer number (368082).

Almost surely, 2^3906918 is an apocalyptic number.

3906918 is an abundant number, since it is smaller than the sum of its proper divisors (4927050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3906918 is a wasteful number, since it uses less digits than its factorization.

3906918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468 (or 9465 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 3906918 is about 1976.5925224993. The cubic root of 3906918 is about 157.4991080826.

The spelling of 3906918 in words is "three million, nine hundred six thousand, nine hundred eighteen".